Home / 824,737.20-1,235,005.70-543,401.52

Finding the Fourth Proportional to 824,737.20, 1,235,005.70 and 543,401.52

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Solution

The fourth proportional to 824,737.20, 1,235,005.70 and 543,401.52 is: 813,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,737.20 : 1,235,005.70 = 543,401.52 : x
  2. Step 2: Convert to fraction form
    824,737.20/1,235,005.70 = 543,401.52/x
  3. Step 3: Cross multiply
    824,737.20x = 1,235,005.70 × 543,401.52
  4. Step 4: Simplify right side
    824,737.20x = 671,103,974,588.66
  5. Step 5: Solve for x
    x = 671,103,974,588.66/824,737.20
  6. Step 6: Final answer
    x = 813,718.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.